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Thermally enhanced perpendicular magnetic anisotropy behaviors of ultrathin [Co/Pd](n) multilayers via NiOx capping layer

Title
Thermally enhanced perpendicular magnetic anisotropy behaviors of ultrathin [Co/Pd](n) multilayers via NiOx capping layer
Author
홍진표
Keywords
FILMS; COERCIVITY; MEMORY
Issue Date
2015-06
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v. 106, NO 22, Page. 106-111
Abstract
We report the enhanced perpendicular magnetic anisotropy (PMA) features of ultrathin [Co/Pd](3) multilayers (MLs) employing a NiOx insertion layer at high annealing temperatures. Thermally enhanced PMA in [Co/Pd](3)/NiOx (capping layer) MLs were achieved at a specific capping layer thickness, while no PMA responses were observed for a NiOx (buffer layer)/[Co/Pd](3) ML, regardless of NiOx thickness. X-ray diffraction observations, including rocking curves, identified the relatively different crystalline characteristics of the NiOx capping and buffer layers. Origin of the enhanced PMAs of [Co/Pd](3) MLs containing a NiOx capping layer is described based on the NiOx capping effect possibly providing additional Co/Oxide i-PMA under high-temperature annealing. (C) 2015 AIP Publishing LLC.
URI
http://aip.scitation.org/doi/abs/10.1063/1.4921885http://hdl.handle.net/20.500.11754/25699
ISSN
0003-6951; 1077-3118
DOI
10.1063/1.4921885
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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